<p>This is normal---普通文本</p>
<hr/>
<b>This is normal---定义大号字体</b>
<hr/>
<strong>This is noraml---加重语气</strong>
<hr/>
<big>This is normal---大号字体</big>
<hr/>
<em>This is normal---着重文字</em>
<hr/>
<i>This is normal---斜体</i>
<hr/>
<small>This is normal---小号字体</small>